CAJ | 학술논문

借助超声波的分散、辅助引发作用，以丙烯酸（AA）和丙烯酰胺（AM）为单体，以N，N’－亚甲基双丙烯酰胺（NMBA）为交联剂，以过硫酸钾（K2 S2 O8）为引发剂，无氮气保护下，采用超声波细胞粉碎法制备了聚丙烯酸／丙烯酰胺（P（AA－AM））高吸水性树脂。采用正交试验研究了树脂吸水性能最优的反应条件。通过单因素实验，重点考察了反应温度、引发剂用量、单体配比等对树脂吸水率的影响。用红外光谱（FTIR）和扫描电镜（SEM）对树脂的结构与形貌进行表征。结果表明，在超声条件下，可在较短的反应时间内合成高吸水性树脂。最佳工艺条件是 AA 中和度为70％，T＝50℃， n（AM）∶n（AA）＝0．3，m（NMBA）∶m（AA＋AM）＝0．05％，m（K2 S2 O8）∶m（AA＋AM）＝0．2％，吸水倍率最高为398．172 g／g。三维网状结构的存在是树脂高吸水性的关键。
차조초성파적분산、보조인발작용，이병희산（AA）화병희선알（AM）위단체，이N，N’－아갑기쌍병희선알（NMBA）위교련제，이과류산갑（K2 S2 O8）위인발제，무담기보호하，채용초성파세포분쇄법제비료취병희산／병희선알（P（AA－AM））고흡수성수지。채용정교시험연구료수지흡수성능최우적반응조건。통과단인소실험，중점고찰료반응온도、인발제용량、단체배비등대수지흡수솔적영향。용홍외광보（FTIR）화소묘전경（SEM）대수지적결구여형모진행표정。결과표명，재초성조건하，가재교단적반응시간내합성고흡수성수지。최가공예조건시 AA 중화도위70％，T＝50℃， n（AM）∶n（AA）＝0．3，m（NMBA）∶m（AA＋AM）＝0．05％，m（K2 S2 O8）∶m（AA＋AM）＝0．2％，흡수배솔최고위398．172 g／g。삼유망상결구적존재시수지고흡수성적관건。
A superabsorbent resin copolymer with acrylic acid (AA)and acrylamide (AM)as mon-omers was prepared by ultrasonic irradiation under no nitrogen protection using N,N′-methylene-bis-acrylmide (NMBA)as crosslinker and potassium persulfate (K2 S2 O8 )as initiator.The optimal ab-sorption condition of the resin was investigated through the orthogonal design.The influence of reac-tion conditions such as reaction temperature,dosage of the initiator and monomer mole ratio on water absorbency was investigated by single factor experiment.The molecular structure and morphology of the resin were measured with Fourier-transform infrared spectroscopy (FTIR)and scanning electron microscopy (SEM).The results show that the superabsorbent resin copolymer was synthesized in a short reaction time under ultrasonic irradiation.Moreover,the absorbing power was 398.172 g·g-1 in the optimum condition.Concretely,the degree of neutralization of AA,the reaction temperature, the monomer mole ratio of AM and AA,the mass ratio of NMBA and monomers,as well as the mass ratio of K2S2O8 were 70%,50 ℃,0.3,0.05%and 0.2%,respectively.The high water absorba-bility of the resin is closely related to its three-dimension network structure.